Table 2.

Sample of participating GPs and dentists

Characteristic	GPs	Dentists
Sex	N = 15	N =13
Male	N = 10	N = 12
Female	N = 5	N = 1
Age (mean)	57 years	52 years
Number of years in practice (ø)	27 years	25 years
Size of practice team (ø)	1.33 doctors	1.85 doctors
Size of practice (ø)	3.5 rooms	3.5 rooms
Patients per day (ø)	55 patients/day	33 patients/day
Members in a quality circle	4	3
Rural area (letter L)	5	4
Medium-sized town (letter M)	6	5
City (letter G)	4	4